Roll.



H.v PARKER.

ROLL.

APPLIOATION FILED JUNE 17, 1909. RENEWED FEB. 7, 1913.

, 1 1QO Q9() Patented June 16,1914.

Fig.

WITNESSES: INVEN TOR.

ggg w 13% I Mk3 55W UNITED STATES PATENT OFFICE.

HOWARD PARKER, 0F NASHUA, NEW HAMPSHIRE ASSIGNOR TO THE IMPROVED PAPERMACHINERY COMPANY, OF NASH'UA, NEW HAMPSHIRE, A CORPORA- TION 0F MAINE.

' ROLL.

Patented June 1914.

Application filed June 17, 1909, Serial No. 502,732. Renewed February 7,1913. Serial No. 746,923.

To all whom it may concern:

Be it known that I, HOWARD PARKER, a citizen of the United States, and aresident of Nashua, in the county of Hillsboro and State of NewHampshire, have invented certain new and useful Improvements in Rolls,of which the following is a specification.

This invention relates to improvements in rolls which may be used forvarious purposes, the roll illustrated in the drawings being designedfor use as a couch roll in paper making and pulp treating machinery.These rolls usually comprise a rigid core and have a surface applied tothem either of rubber, felt or. some such material.

In the drawingsFigure 1 is a side view partly in section of a rollembodying my inging a which are spaced at suitable intervals about thecore and extend lengthwise thereof, giving the eflectof a longitudinallygrooved core.- On top of this lagging I wind spirally a strip of felt I)on edge. I slit this strip to any desired depth but not sufiiciently tosever it, as indicated at c. In this slit I lay a binding wire d whichbinds the felt onto the core. At intervals I may use a smallstaple ewhich shall straddle the wire and be driven down into the laggingstrips. This winding of felt is compacted endwise on the roll so as togive the roll a full and firm surface. If necessary the surface of theroll can be turned off to make it, smooth and of uniform diameterthroughout. The slitting of the felt not only provides a means forbinding it into place on the roll but also provides a water-way intowhich the water vwhich is pressed out of the pulp may escape and be ledto the end of the roll; the water can also seep down between the stripsand pass out through the troughs on the core formed by the laggingstrips.

If desired in place of winding astrip of felt or like material onto theroll a single pieceof felt :1: having a width equal to the length of theroll maybe wrapped about the' shown in Fig. 5 it is desirable'to startthe winding at the centerand have it run toward each end as in thatcaseit makes a shorter trelilvel for the water to get to the end of thero I Still another modification is illustratedin Fig. 6, in which astrip of felt y is Wound spirally about the roll, the binding wire beinglaidalong the center of the strip and the strip being then folded up topresent the edges of the strip to form the surface of the roll.

It is apparent that other materials than felt, for instance rubber,could be used in the same way and to the same advantage as is the felt.It is further apparent that the character of the core is not a materialpartof the'invention; it may be a solid core or hollow or of otherconstruction.

I claim 1. A roll comprising a core, a covering wrapped about said core,a spirally arranged slit in said covering, and means lo-' cated in thebottom of said slit for securing said covering onto said core,substantially as described.

2. A roll comprising a core, a strip of covering material wound spirallyabout said core, said strip being slit for part of its depth, and meanslocated in the bottom of said slit for securing. said covering to saidcore.

slits in said covering, a binding wire located in'the bottom of saidslits for binding said cover onto said core, substantially as described.

4. A roll comprising a core, a covering wrapped about said core,spirally arranged slits in said covering, a binding'wire located in thebottom of said slits for binding said 3. A roll comprising a core, acovering wrapped about said core, spirally arranged.

cover onto said core, and staples straddling said wire and adapted to bedriveninto sai core.

' 5. A roll comprising a core, a strip of covering material woundspirally about said core, and passages formed between said core and thebottom of said cover and extending lengthwise of said core.

'6. A roll comprising a core, lagging strips secured thereto andextending lengthwise thereof, and a strip of covering material woundspirally about said core on said lagging strips.

7 A roll comprising a core, lag 'ng strips secured thereto and extendingfii ngthwise thereof, a strip of covering material wound spirally aboutsaid core on said lagging strips, said strip being slit for art of itsdepth, and means located in sai securing said covering material to saidcore.

8. A roll comprising a core, lag 'ng strips secured thereto andextending i ngthwise thereof, a strip of covering material woundspirally about said core on said lag 'ng strips, said strip being slitfor part 0 its depth, a binding wire located in said slits, and staplesstraddling said binding wire and adapted to be driven into said laggingstrips.

HOWARD PARKER.

Witnesses:

RQBERT A. FRENCH, New M. PARKER.

strip for

